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Finding the Fourth Proportional to 611,783.20, 844,284.76 and 418,596.10

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Solution

The fourth proportional to 611,783.20, 844,284.76 and 418,596.10 is: 577,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,783.20 : 844,284.76 = 418,596.10 : x
  2. Step 2: Convert to fraction form
    611,783.20/844,284.76 = 418,596.10/x
  3. Step 3: Cross multiply
    611,783.20x = 844,284.76 × 418,596.10
  4. Step 4: Simplify right side
    611,783.20x = 353,414,305,266.86
  5. Step 5: Solve for x
    x = 353,414,305,266.86/611,783.20
  6. Step 6: Final answer
    x = 577,679.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.